| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotary solenoid which can maintain smooth rotational displacement for a long period of time without causing a collar to interfere with an extension portion during the turning of a rotary plunger, even if the collar is deformed in an outward spreading direction due to the stacking pressure of a coil body. SOLUTION: A recess 16 for receiving spread deformation caused in the collars 12b and 12c of a winding spool 12 is formed at the internal surface side of the extension portion 10a, so that even if the collars 12b and 12c of the winding spool 12 are deformed outward due to spreading in a winding process of a coil body 13, the collars 12b and 12c do not interfere with the extension portion 10a during the turning of the rotary plunger 10 in a winding process for the coil body 12, thereby maintaining the smooth rotational displacement of the rotary plunger 10 for a long period of time. The recess 16 is formed at the internal surface side of the extension portion 10a, so that the extension portion 10a does not expand outward and is not enlarged as a whole, thereby achieving size reduction contributing to space saving. COPYRIGHT: (C)2009,JPO&INPIT
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